Solomon g



UNTTED sTATEs PATENT OEEIOE.

SOLOMON G. BOOTH, OF NEW YORK, N. Y.

ROLLERS FOR CORRUGATING SHEET METAL.

Specication of Letters Patent No. 12,268, dated January 23, `1855.

.To all 'whom t may concern.'

Be it known that I, SOLOMON G. BOOTH,

.of the city and county andState of New is a vertical section parallel to the axes of the rollers on line a: of Fig. l, showing adjustable guide rollers. Y

Similar letters of reference in the several figures denote the same part.

My invention refers principally to the peculiar construction of the bending rollers by which folds or arches of various sizes may be made upon the same rollers it consists in forming the rollers of a series of plates perpendicular to the axes of the rollers, the outer edges of the plates constituting the surface on which the sheet is bent.

To enable o-thers skilled in the art to make and use my invention I will proceed to describe its construction and operation.

In the drawing A is the frame, B B the first set of bending rollers, C C the second set-of bending rollers, operated by the cog wheels WV. Between the two sets of bending rollers is the system of guide rollers Gr, H, I, the former horizontal, and the frames F of the latter so suspended by the jointed slides a and b as to be capable of any desired inclination.

The bending rollers B B', C C are made and perpendicular to their axes, the outer edges of the plates constituting the bending surfaces `of the rollers. rollers andy consequently the curvature of their faces may be changed'by the insertion of additional plates, or the removal of some already on the shaft, care being taken that the changes shall be so made that the sym- The width of .the

metry of the surface shall not be destroyed.

The plates are secured to the shaft by a key or any suitabledevice. .A

The operation of machines of this character being well known, need not be described except so far as concerns'the guide rollers, which being adjusted to suit the curve given to the sheet by the pair of bending rollers in front them, will receive the sheet and assist it in its transit to thesucceeding pair; the

slidesl a b admitting of sufcient motion to the roller frames F to suit any curvature that may be given to the sheet by the faces of the bending rollers. 4

I do not claim making the rollers of adjustable sections for the purpose of repeating bending operations upon a piece of sheet metal, nor do I claim making rollers of two or more parts, but

I do claim-` Making the swages and dies for forming beams of wrought iron of numerous thin sections so that one two or more sections can be removed to produce beams of different forms for the purpose of saving the expense and inconvenience of a multiplicity of pairs of swages and dies all in the manner herein substantially as set forth.-

In testimony whereof, I have hereunto signed my name before two subscribing witnesses.

S. G. BOOTH. IVitnesses:

GEO. PATTEN, SAML. GRUEB. 

